FONTLOG for LibertinusT1Math
----------------------------

This file provides detailed information on the LibertinusT1Math font software derived mainly from the Libertinus fonts. This information should be distributed along with 
the Libertinus fonts and any derivative works.


Basic Libertinus Font Information
---------------------------------

Libertinus fonts is a fork of the Linux Libertine and Linux Biolinum fonts that
started as an OpenType math companion of the Libertine font family, but grown
as a full fork to address some of the bugs in the fonts.

The family consists of:

* Libertinus Serif: forked from *Linux Libertine*.
* Libertinus Sans: forked from *Linux Biolinum*.
* Libertinus Mono: forked from *Linux Libertinus Mono*.
* Libertinus Math: an OpenType math font for use in OpenType math-capable
  applications like LuaTeX, XeTeX or MS Word 2007+.

Libertinus development is currently hosted on:
http://github.com/khaledhosny/libertinus

Feature requests, bug reports and patches should be directed to our issue
tracker.

Basic LibertinusT1Math Font Information
---------------------------------------

LibertinusT1Math is an adaptation of Libertinus Math, focussing on LaTeX support files, adding and modifying glyphs as needed. The font, LibertinusT1Math.{afm,pfb} is released under the same OFL 1.1 as the Libertinus fonts. The LaTeX support files are released under the LPPL. Bug reports and feature requests for the font changes and the support files should be addressed to Michael Sharpe, msharpe at ucsd dot edu.

Information for Contributors
----------------------------

Libertinus is released under the OFL 1.1 - http://scripts.sil.org/OFL For
information on what you're allowed to change or modify, consult the OFL-1.1.txt
and OFL-FAQ.txt files. The OFL-FAQ also gives a very general rationale and
various recommendations regarding why you would want to contribute to the
project or make your own version of the font.

See the project website for the current master and the various branches:
http://github.com/khaledhosny/libertinus


ChangeLog
---------

30 Jan 2016 (Khaled Hosny) <Libertinus> Version 6.2
- Fixed missing big variant rule for U+27EF.
- Fixed swapped \phi and \varphi symbols.
- Fixed “fi” ligature in Serif Semibold Italic with small caps feature on.
- The “Qu” ligature is now implemented as alternate glyph substitution.
- Added missing small cap Qu alternate glyph to serif fonts.
- Added big radical variants.

22 Jan 2016 (Khaled Hosny) <Libertinus> Version 6.1
- Renamed the fonts from Libertine to Libertinus to be complaint with the
  Reserved Font Name clause of Linux Libertine license. Thanks to Frédéric Wang
  for the new name.
- Dropped legacy Mac platform font names.

18 Jan 2016 (Khaled Hosny) <Libertine> Version 6.0
First release of the forked Libertine fonts, changes since the fork include:
- New Libertine Math font.
- Dropped the use of Unicode PUA for alternate glyphs in favour of making them
  encoded. 
- Dropped the TrueType versions of the fonts.
- Dropped the Romanian-specific cedilla/comma substitution, it is no longer
  recommended to do this at font feature level.
- Fixed upstream font kerning regression.
- Renamed the glyphs to follow the recommended Adobe Glyph Names for New Fonts.
- Fixed lots of inconsistencies in the font files.
- Fixed the encoding of Indian Rubee symbol.
- Made the sans question mark a bit more sans-like.
- Fixed sans interrobang to not use the serif glyphs.
- Removed some bogus ligatures like “!!”, “??”, “...”, etc.
- Fixed the “short f” feature.
- Made the “bunny ears” glyphs with dieresis the alternate form, and made the
  more conventional form the default.
- Dropped the “aalt” feature, since it is of limited use and hard to keep up to
  date.
- Fixed diaeresis positioning in bold serif.
- Fixed the following upstream bugs:
  http://sourceforge.net/p/linuxlibertine/bugs/315/
  http://sourceforge.net/p/linuxlibertine/bugs/311/
  http://sourceforge.net/p/linuxlibertine/bugs/303/
  http://sourceforge.net/p/linuxlibertine/bugs/254/
  http://sourceforge.net/p/linuxlibertine/bugs/293/
  http://sourceforge.net/p/linuxlibertine/bugs/291/
  http://sourceforge.net/p/linuxlibertine/bugs/275/
  http://sourceforge.net/p/linuxlibertine/bugs/235/


Acknowledgements
-------------------------
If you make modifications be sure to add your name (N), email (E), web-address
(W) and description (D). This list is sorted by last name in alphabetical
order.)

N: Khaled Hosny
E: khaledhosny@eglug.org
W: http://www.khaledhosny.org
D: Libertinus fork author

N: Philipp Poll
E: gillian@linuxlibertine.org
W: http://www.linuxlibertine.org
D: Original authors

